// This file is part of OpenMeca, an easy software to do mechanical simulation.
//
// Author(s)    :  - Damien ANDRE  <openmeca@gmail.com>
//
// Copyright (C) 2012 Damien ANDRE
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include <cassert>
#include <iostream>

#include "OpenMeca/Gui/Widget.hpp"
#include "OpenMeca/Gui/UserItemDialog.hpp"

namespace OpenMeca
{
  namespace Gui
  {
  
    Widget::Widget(QWidget& parent)
      : parent_(0),
	parentDeleted_(false)
    {
      bool castOk = false;
      QObject* widget = &parent;
      do
      	{
      	  if (CouldCastToUserItemDialog(widget)==true)
      	    {
      	      parent_ = static_cast<UserItemDialog*>(widget);
      	      castOk = true;
      	      break;
      	    }
      	  assert(widget != 0);
      	  widget = widget->parent();
      	} while (castOk == false);
      
      GetParent().AddWidget(*this);
    }
  
    Widget::~Widget()
    {
      if (parentDeleted_==false)
       	GetParent().RemoveWidget(*this);
    }

    bool
    Widget::CouldCastToUserItemDialog(QObject* widget)
    {
      UserItemDialog* test = 0;
      test = dynamic_cast<UserItemDialog*>(widget);	  
      return (test!=0);
    }

    UserItemDialog& 
    Widget::GetParent()
    {
      assert(parent_!=0);
      assert(parentDeleted_ == false);
      return *parent_;
    }

    void
    Widget::ParentDeleted()
    {
      parentDeleted_ = true;
    }

  }
}
